SUSE update for bind
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-25220 |
| CWE-ID | CWE-350 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system SUSE Linux Enterprise Desktop Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise Module for Server Applications Operating systems & Components / Operating system python3-bind Operating systems & Components / Operating system package or component bind-utils-debuginfo Operating systems & Components / Operating system package or component bind-utils Operating systems & Components / Operating system package or component libns1604-debuginfo Operating systems & Components / Operating system package or component libns1604 Operating systems & Components / Operating system package or component libisccfg1600-debuginfo Operating systems & Components / Operating system package or component libisccfg1600 Operating systems & Components / Operating system package or component libisccc1600-debuginfo Operating systems & Components / Operating system package or component libisccc1600 Operating systems & Components / Operating system package or component libisc1606-debuginfo Operating systems & Components / Operating system package or component libisc1606 Operating systems & Components / Operating system package or component libirs1601-debuginfo Operating systems & Components / Operating system package or component libirs1601 Operating systems & Components / Operating system package or component libirs-devel Operating systems & Components / Operating system package or component libdns1605-debuginfo Operating systems & Components / Operating system package or component libdns1605 Operating systems & Components / Operating system package or component libbind9-1600-debuginfo Operating systems & Components / Operating system package or component libbind9-1600 Operating systems & Components / Operating system package or component bind-devel Operating systems & Components / Operating system package or component bind-doc Operating systems & Components / Operating system package or component bind-debugsource Operating systems & Components / Operating system package or component bind-debuginfo Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component bind-chrootenv Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Reliance on Reverse DNS Resolution for a Security-Critical Action
EUVDB-ID: #VU61422
Risk: Medium
CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-25220
CWE-ID:
CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to an error in DNS forwarder implementation. When using forwarders, bogus NS records supplied by, or via, those forwarders may be cached and used by named if it needs to recurse for any reason, causing it to obtain and pass on potentially incorrect answers. The cache could become poisoned with incorrect records leading to
queries being made to the wrong servers, which might also result in
false information being returned to clients.
Update the affected package bind to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server: 15-SP3-LTSS - 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS - 15-SP4
SUSE Linux Enterprise Module for Basesystem: 15-SP3 - 15-SP4
SUSE Linux Enterprise Desktop: 15-SP3 - 15-SP4
SUSE Manager Server: 4.2
SUSE Manager Proxy: 4.2
SUSE Linux Enterprise Server for SAP Applications: 15-SP3 - 15-SP4
SUSE Linux Enterprise Module for Server Applications: 15-SP3 - 15-SP4
python3-bind: before 9.16.6-150300.22.16.1
bind-utils-debuginfo: before 9.16.6-150300.22.16.1
bind-utils: before 9.16.6-150300.22.16.1
libns1604-debuginfo: before 9.16.6-150300.22.16.1
libns1604: before 9.16.6-150300.22.16.1
libisccfg1600-debuginfo: before 9.16.6-150300.22.16.1
libisccfg1600: before 9.16.6-150300.22.16.1
libisccc1600-debuginfo: before 9.16.6-150300.22.16.1
libisccc1600: before 9.16.6-150300.22.16.1
libisc1606-debuginfo: before 9.16.6-150300.22.16.1
libisc1606: before 9.16.6-150300.22.16.1
libirs1601-debuginfo: before 9.16.6-150300.22.16.1
libirs1601: before 9.16.6-150300.22.16.1
libirs-devel: before 9.16.6-150300.22.16.1
libdns1605-debuginfo: before 9.16.6-150300.22.16.1
libdns1605: before 9.16.6-150300.22.16.1
libbind9-1600-debuginfo: before 9.16.6-150300.22.16.1
libbind9-1600: before 9.16.6-150300.22.16.1
bind-devel: before 9.16.6-150300.22.16.1
bind-doc: before 9.16.6-150300.22.16.1
bind-debugsource: before 9.16.6-150300.22.16.1
bind-debuginfo: before 9.16.6-150300.22.16.1
bind: before 9.16.6-150300.22.16.1
bind-chrootenv: before 9.16.6-150300.22.16.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_server_applications:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:python3-bind:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-utils:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libns1604-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libns1604:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccfg1600-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccfg1600:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccc1600-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccc1600:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1606-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1606:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libirs1601-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libirs1601:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libirs-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libdns1605-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libdns1605:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libbind9-1600-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libbind9-1600:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-doc:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-chrootenv:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20220945-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
